US STOCKS SNAPSHOT-Wall St opens lower as Mideast de-escalation uncertainty weighs

March 26 (Reuters) - Wall Street's main indexes opened lower open on Thursday following gains in the previous session, as caution prevailed about developments in the Middle East while weighing the prospects for de-escalation in the conflict.

The Dow Jones Industrial Average .DJI fell 84.8 points, or 0.18%, at the open to 46,344.64. The S&P 500 .SPX fell 36.0 points, or 0.55%, to 6,555.86​, while the Nasdaq Composite .IXIC dropped 236.7 points, or 1.08%, to 21,693.175.